Island



(No Model.)

J. BOOTH.

' SPINDLE SUPPORTING BOLSTPR AND STEP.

No. 310,871. Patented Jan. 20, 1885.

' -YWITJVESSES I L caw-MMC 42% Nirnn STATES Parent Ormes.

JOHN BOOTH, CENTRAL FALLS, ASSIGNOR TO STEPHEN A. JENKS, OF LINCOLN, RHODE ISLAND.

SPINDLE-SUPPORTING BOLSTER AND STEP.

SPECIFICATION forming part of Letters Patent No. 310,871, dated January 20, 1885.

Application filed October 5, 1882.

To all whom, it may concern:

Be it known that I, JOHN BOOTH, a citizen of the United States, residing at Central Falls, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Spindle-SupportingBolsters and Steps 5 andIdo hereby declare the following to be a full, clear, and exact description of theinventon, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawing, and to letters or iigures of reference marked thereon, which form a part of this specification.

The object of my invention is to provide a spindle with a spindle-supporting bolster and step which will reduce wabbling or injurious gyration of the spindle, and avoid the use of elasticpacking or springs heretofore commonly used.

The particular features in which my invention consists will be hereinafter described, and particularly pointed out in the claim at the end of the specification.

I have shownthe bolster tapered both downward and upward from near its central part, and I have located the pin which restrains the bolster from rotation in the line of the band-pull, and I have also provided the bolster with oil-passages Ifor the proper circulation or iiow of oil in the same and thebolstercase.

The figure made. to illustrate my improvements represents in elevation a spindle and bolster rest, together with a bolster-case, bolster, and sleeve-whirl in section, the spindle being one adapted for a twister.

The bolster-case B, adapted to be attached to the usual rail ofa spinning-frame in any ordinary manner, is closed at bottom to form an oil well or chamber for the reception,loosely, of the bolster C. The inner wall of the bolster-case has a vertical groove, 10, to receive a pin or projection, I), shown as attached to the bolster C; and it will be noticed that the p'in I? is located in the line of the usual bandpull or in the line of the bottom of the groove of the usual band-receiving whirl, a, attached (No model.)

to the sleeve A, connected with the spindle l). The pin or projection P in the groove 10 restrains the bolster, placed loosely in the chamber of the bolster-case, from rotating with the spindle, but yet permits the bolster to move laterally in the oil in the bolster-case as the spindle seeks its true center of rotation. The bolster, closed at its bottom to support the bottom of the spindle, is supported upon a spherical or ball-like bolster-rest, F, located between t-he bottom of the bolster and the bottom of the chamber of the bolstencase. The bolster is slightly tapered externally from near its central portion, aboutin line with thebandpull and from above and below the pin l? to ward each end, the bolster being smaller at its ends c c than at its middle portion, to permit the ends to have a greater movement than the larger portion of the bolster opposite or in line oftheband-pull, and also to enable the case to contain more oil. The bolster C, at or near its lower end, has one or more oilholes, h, and from the top of the bolster to near its lower end a groove, c, the said holes and grooves permitting free circulation of oil inthe bolster and bolster-case. Vith a rapidlyrotatingspindle the oilwillwork or creep up and over the top of the bolster; butby providing the bolster with a groove, e, and holes h the circulation of oil is maintained. The oil in the bolstercase acts as a cushion to ease the movement of the bolster.

The bolster-rest F is composed of a single sphere or ball, of smaller diameter than the diameter of the chamber in the bolster-case, and the said rest is shown as placed on a plate or disk, f, constituting the bottom of the chamber of the said case. A spherical ballrest permits the lower end of the bolster to move freely in the bolstencase as the spindle is moved, to find its true center of rotation,

Vand by the employment of such a rest I have 'found that the spindle is able to gain and retain its actual vertical central position much more readily than when such arest is not used.

Oil will or may be introduced into the bol ster-case in any usual manner.

I olaim- In testimony whereof Ihaveaftixed my sig- In combination, the bolster C, tapered at nature in presence of two Witnesses.

o c', and having an oil-groove, e, andoil-passages lz, pin or projection P, the bolster-ease JOHN BOOTH.

5 closed at bottornand positively engaging said l pin or projection 'to prevent rotation of the Vitnesses:

bolster in its case, the platef, and bolster-rest 4 WM. R. DUTEMPLE,

F, substantially as described.' GEO. H. REMINGTON. 

